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Microencapsulation
专利权人:
Encapsys; LLC
发明人:
Hanwei Zhang,Todd Arlin Schwantes
申请号:
US16657206
公开号:
US20200122110A1
申请日:
2019.10.18
申请国别(地区):
US
年份:
2020
代理人:
摘要:
An improved process of making a benefit agent delivery particle and an improved microcapsule made by such process are disclosed. The process comprises the steps of providing a first composition of water phase 1, water phase 2, water phase 3 and an oil phase, where a water phase multifunctional (meth)acrylate monomer is selected to have a hydrophilicity index of least 25, or even at least 30 and the oil phase multifunctional (meth)acrylate monomer has a hydrophilicity index of 25 or less, or even 20 or less. The water phases comprise water, initiator, a water-soluble or dispersible amine(meth)acrylate or hydroxyl(meth)acrylate, a multifunctional (meth)acrylate and one water phase comprises water, carboxyalkyl(meth)acrylate and a base or quaternary ammonium acrylate. Water phases are combined to prereact the hydroxy- or amine(meth)acrylate and the multifunctional (meth)acrylate to form a multifunctional hydroxyl-amine(meth)acrylate pre-polymer. The pre-polymer is combined with the remaining water phase and an emulsion is formed by emulsifying under high shear agitation, an oil phase comprising an isocyanate and a benefit agent core material thereby forming a wall surrounding the benefit agent core material.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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